Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 798 · 40 questions

What you do (Water climbs thin tubes): 1. Mix food colour into a glass of water. 2. An adult trims the flower stem and stands it in the coloured water. 3. Check the petals every few hours and draw what you see. 4. Wash your hands after handling food colour.

1. 1.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
2. 2.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
3. 3.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
4. 4.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the petals turn bluish (d) the flower floats away
5. 5.True or false: a piece of foil lets water climb up it. (a) False (b) True
6. 6.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they turn two colours (d) they all turn green
7. 7.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
9. 9.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) the petals turn red (d) no colour change
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) turmeric powder (d) a few hours of waiting
11. 11.🔍 Which is the odd one out? (a) a strip of cloth (b) a rubber eraser (c) a plastic ruler (d) a glass marble
12. 12.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) a pet (d) anyone, without looking
13. 13.💧 Which of these does not let water climb? (a) a sugar cube (b) a paper towel (c) a piece of chalk (d) a plastic ruler
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a magnet (d) food colour
15. 15.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
16. 16.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
17. 17.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a glass of water (d) yeast
19. 19.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
20. 20.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a cotton thread (b) a rubber eraser (c) a glass marble (d) a steel spoon
22. 22.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a mirror (d) a white flower
25. 25.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
26. 26.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
27. 27.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) colour climbs up it (d) nothing ever happens
28. 28.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) a white flower (d) a glass of water
29. 29.🔍 Which is the odd one out? (a) a sugar cube (b) a rubber eraser (c) a piece of foil (d) a steel spoon
30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) True (b) False
32. 32.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it is sprayed on (d) it rains on them
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a few hours of waiting (d) food colour
34. 34.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of foil (c) a piece of chalk (d) a paper towel
35. 35.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
36. 36.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) turmeric powder (c) a glass of water (d) food colour
37. 37.💧 Which of these lets water climb up it? (a) a flower stem (b) a glass marble (c) a steel spoon (d) a plastic ruler
38. 38.🔍 Which is the odd one out? (a) a paper towel (b) a cotton thread (c) a steel spoon (d) a piece of chalk
39. 39.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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